C Program to Copy Text From One File to Other File

Program : Copy Text From One File to Other File

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
void main() {
   FILE *fp1, *fp2;
   char ch;
   clrscr();
   fp1 = fopen("Sample.txt", "r");
   fp2 = fopen("Output.txt", "w");
   while (1) {
      ch = fgetc(fp1);
      if (ch == EOF)
         break;
      else
         putc(ch, fp2);
   }
   printf("File copied Successfully!");
   fclose(fp1);
   fclose(fp2);
}

#include<stdio.h>

#include<conio.h>

#include<stdlib.h>

void main() {

FILE *fp1, *fp2;

char ch;

clrscr();

fp1 = fopen("Sample.txt", "r");

fp2 = fopen("Output.txt", "w");

while (1) {

ch = fgetc(fp1);

if (ch == EOF)

break;

else

putc(ch, fp2);

}

printf("File copied Successfully!");

fclose(fp1);

fclose(fp2);

}

Explanation :

To copy a text from one file to another we have to follow following Steps :
Step 1 : Open Source File in Read Mode

fp1 = fopen("Sample.txt", "r");

1	fp1 = fopen("Sample.txt", "r");

Step 2 : Open Target File in Write Mode

fp2 = fopen("Output.txt", "w");

1	fp2 = fopen("Output.txt", "w");

Step 3 : Read Source File Character by Character

while (1) {
      ch = fgetc(fp1);
      if (ch == EOF)
         break;
      else
         putc(ch, fp2);
   }

while (1) {

ch = fgetc(fp1);

if (ch == EOF)

break;

else

putc(ch, fp2);

}

“fgetc” will read character from source file.
Check whether character is “End Character of File” or not , if yes then Terminate Loop
“putc” will write Single Character on File Pointed by “fp2” pointer

Input Text File :

Output Written on File

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